We show that southern elephant seal (Mirounga leonina) colonies existed proximate to the Ross Ice Shelf during the Holocene, well south of their core sub-Antarctic breeding and molting grounds. We propose that this was due to warming (including a previously unrecognized period from _1,100 to 2,300 14C yr B.P.) that decreased coastal sea ice and allowed penetration of warmer-thanpresent climate conditions into the Ross Embayment. If, as proposed in the literature, the ice shelf survived this period, it would have been exposed to environments substantially warmer than present.
Holocene elephant seal distribution implies warmer-than-present climate in the Ross Sea
BARONI C;
2006-01-01
Abstract
We show that southern elephant seal (Mirounga leonina) colonies existed proximate to the Ross Ice Shelf during the Holocene, well south of their core sub-Antarctic breeding and molting grounds. We propose that this was due to warming (including a previously unrecognized period from _1,100 to 2,300 14C yr B.P.) that decreased coastal sea ice and allowed penetration of warmer-thanpresent climate conditions into the Ross Embayment. If, as proposed in the literature, the ice shelf survived this period, it would have been exposed to environments substantially warmer than present.File in questo prodotto:
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